Umudike Journal of Engineering and Technology

Michael Okpara University of Agriculture, Umudike


FINITE ELEMENT ANALYSIS OF A 7.5KW ASYNCHRONOUS MOTOR UNDER INTERMITTENT LOADING

Abunike, E. C.
Department of Electrical and Electronic Engineering, Michael Okpara University of Agriculture, Umudike, Abia State

Okoro, O. I.
Department of Electrical and Electronic Engineering, Michael Okpara University of Agriculture, Umudike, Abia State



ABSTRACT

This paper explores dynamic behaviors of asynchronous motor under intermittent loading based on finite element models and solutions in time domain. Transient Finite Element Analysis (FEA) of the motor in an on and off loading conditions is performed at time intervals of 0.2s for a 2D model. Dynamic characteristics such as speed, torque, phase currents and flux distributions of the motor were studied. It was observed that at the 37 Nm rated load, the motor recorded a negative speed when loaded intermittently at 0.2s intervals. The maximum load for which positive speed was observed is 32 Nm. The other characteristics were in acceptable ranges for both loads.



Keywords: Finite Element Analysis (FEA), induction motor, intermittent loading, magnetic flux distributions and movement band


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Published
Wednesday, December 28, 2016

Issue
Vol. 2 No. 2, DEC 2016

Article Section
GENERAL

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